| (19) |
 |
|
(11) |
EP 0 624 474 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
08.11.1995 Bulletin 1995/45 |
| (43) |
Date of publication A2: |
|
17.11.1994 Bulletin 1994/46 |
| (22) |
Date of filing: 12.05.1994 |
|
| (51) |
International Patent Classification (IPC)5: B41J 2/16 |
|
| (84) |
Designated Contracting States: |
|
CH DE FR GB IT LI NL SE |
| (30) |
Priority: |
12.05.1993 JP 110338/93
12.05.1993 JP 110340/93
10.05.1994 JP 96751/94
|
| (71) |
Applicant: SEIKO EPSON CORPORATION |
|
Shinjuku-ku
Tokyo-to (JP) |
|
| (72) |
Inventors: |
|
- Tanaka, Yuji
Suwa-shi,
Nagano-ken (JP)
- Hayashi, Hiroko
Suwa-shi,
Nagano-ken (JP)
- Itano, Masaaki
Suwa-shi,
Nagano-ken (JP)
- Ouki, Yasuhiro
Suwa-shi,
Nagano-ken (JP)
|
| (74) |
Representative: Lewin, John Harvey |
|
Elkington and Fife
Prospect House
8 Pembroke Road
Sevenoaks, Kent TN13 1XR
Sevenoaks, Kent TN13 1XR (GB) |
|
| |
|
| (54) |
Printing heads for use in ink jet printing and method for producing the same |
(57) 57 A printing head for use in ink jet printing comprising an ink-jetting nozzle and
an ink channel connected to the ink-jetting nozzle, at least a part of the ink channel
comprising an activation-energy-ray- hardening resin is disclosed. The resin in the
printing head has a certain hardened state. The printing head has improved resistance
to ink compositions containing acetylene glycol which sometimes damage the conventional
printing heads comprising an activation-energy-ray-hardening resin.